What was found
AIRCRAFT WAS GROUNDED: EMERGENCY POWER SUPPLY UNIT BATTERY (13WL) FAULT ON EMERGENCY POWER SUPPLY UNIT SYSTEM TEST. REPLACED EMERGENCY POWER SUPPLY UNIT BATTERY (13WL) PER AMM 33-51-38.
- Difficulty date
- April 7, 2021
- Submitted
- April 8, 2021
- Operation
- Air carrier
- Aircraft
- N130AN
- Make and model
- Airbus A321231
- Aircraft serial
- 6407
- Aircraft time
- 21,192 hours, 5,948 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery
- Part number
- 321431
- Condition
- Faulted
- Location
- Emergency Lights
- Stage of operation
- IN
- How discovered
- V
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.